Call bell or signaling device



. To all'. whom away conoci/fa.'

Patented Sept. 5, 1922.,

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CALL BELLDR-:SIGNALING DEVICE.

f Y Application filed May 24,

Be itlznownthat I, SAUL KATZ, ancitizen ofthe 'United States, residing in Chicago, in the lcounty of Cook andlState ofllllinois, haveinvented vcertain Vnew and use'fulvlm- `provements in @all Bells or SignalingDevices, of which the following isfaqspecification.

This invention relates to that class ofsignaling devices,l having a: pair .ci electromag- .nets .adapted to beconnected with -a single battery. or source of electric supply and with a signaling deviceconstructed fin three` different electrical f circuits in such a manner 'as to.l enable adlfferent signal to be given ley-,the closing-otl eachcircuit, respec-`V ttively.

The principalobject of the invention is to provide alsimple, economicalvl and eilicient electrically' actuated signalin device.

A further .objectof the invention is. to

1 provide an electricallyactuated signaling de vice in which twoymovable signaling mem-- bers,. such asa .bell hammer and a buzzermay be actuated infsuchz a .manner as to -enable three .diffe-rent and distinctlsignals to be given thereby, bymeans of a pair otelectro-l combinations, and construction Vand arrangement oit-:parts herein described and claimed. IInl thev accompanyingE drawings- Figure v1 is a view in front elevation of accordance with m-y invention Fig. 2 is aview in side elevation ofthe same ;V and f Fig. 3 is' a diagrammatic view indicating.

the .cirucits, andrthe arrangement of the cores` and coils or windings ofthe electromagnets, and:,their-connections, as Wellas the `armatures, circuit-breakers or interrupters, and switches. ,Y i

In constructing an ,improved Signaling ,device in accordancewith my invention, I provide a metallic base .plate V1, Whichisadaptedito bemountedupon a suitable vsupport,-y

and is provided with a stanclard-2,.fiXed-to :4; said basefplate.' andx forming -a support for a een een@ i's"*`se i1 rea in posieanpop `the standard bymeans. of astrew ,4, forsimilar mounted upon the base plate, .the posts 5, 6

and l8y being insulated from the baseplate by .means of fsuitable f. insulating ,material 9,

9, .9, intheordinary manner, and Ythepost'f being inmetallic .contact or connected with,y

the` base/ plate by .elec tlially, conductive lmeans in rany :ordinary and Well known lTwo eletrfollgnets,arefprovidedtone hev- .ing a metalliccore 10 around which is vv,guild va coil 1 1 of@ insulat-idA wire; and the other havin@ a-fmetallic vcore laround which is woundlafsimilarghelical coil `13 ofinsulated wire. It will be, noted; that theseicoil's are noty direct-ly.l connected, but that each is ,sepav frately kwound uponitscore of soft. iron or other i suitable material, eachA core vbeing pro;

vided at its oppositeeXtremities With "disks 0r Washers 1,4through'-vh0hlthe .ends ofthe l. core project Each core ywith itsv insulating end washers. orclisks 14,1% 4thus, forms a spool upon which. its 1 coil is Woundfb'etween `saidnd disks. f

porting the electromagnetsin. position upon A yerysimpleand.efficient means forsup- Q thelbaseplate iinxparallelrelation and spaced apartv so that they are quite separate and not' 4directly connected,jconsist's of a lat sheet metal plate` 15 laid flat upon the face of the,`

baseplate 1, and secured ,to the latterfby Ylheimain body ofthe sheet metal .plate 15 hasa `.s.ic le flz tnge 16 at ornear its upper eX- treinity bent into perpendicular relation to ythe main'body of, the .plate and located endwise beyond the correspondingend of the ,core 1Q on upper magnet ,comprising core 1() and coil 11.4 ,On the same side of lthe plate 15 is another relativelyV long fla-nge V1 9 Which-y is perpendicular to thelmain bodyA of the lplateancl parallel with `respect to the flange 16, and on theopposite sidef-'fand ator vnear .thef lowereXtremityy of the plate l5 trom the flanges 16 and 19,-is `side flange 20,

means ofscrews 15 or `other suitable securl mgmeans which .is located beyond the end of 4the core-y of.; the lower electromagnet.

To thellange 16 issecured thel upperllen-V ,i

ibley endet, an armature 17v which hasl a springContact Qranterrupter 18, mounted onl'thegoutside thereof in .positon to be nor.-

`malty in.rv yielding engagement (Wt'hl'. @11 in the vbell 3 as the armature is actuated.

suiated metallic contact post 21 mounted upon a layer or plate of insulating' matel'lal 22 which is secured to the main base plate 1 by means of securing hooks 23 or other suitable securing means.' This f armature 17 serves as a buzzer armature.

rIhe upper and lower electromagnet are supported by the vertical flange 19 which is located between the ends of the electromagnets and the armature 17 and provided with suitable apertures through which the adjacent ends of the cores 10 and 12 extendthe lowercore 12 being in position to actuate the buzzer armature 17 when said core is energized.

A bell-hammer armature 24 has its iiexible bottom end attached to the bottom side flange 2O by means of a rivet 20 or other suitable ordinary securing means, and is provided with a bell hammer 25 Xed to the upper end of said armature, in position to swing into and out of striking contact with spring contact member or interrupter 26 is attached to the bell armature 24 in position-v to normally yieldingly engage a contact post 27 which is of metal and mount-ed upon a 'layer or plate 28 of insulating material attached to the base plate 1 by means Aof securingl hooks 2 9, or other suitable securing means.

The spring contact or interrupter 26 is of spring metal or resilientv material and projects downward beyond the lower extremity of the relatively heavy body portion of the armature 24 and is attached to and in contact with the flange 2O already described,

so that the bottom extremity of the armature'is thus resilient or` flexibly connected with the supporting flange.

The spring contact or interrupter 18 on the buzzer armature 17 is, by preference, of lighter construction or more flexible than the spring contact member or interrupter 26 on the bell-hammer armature 24, and the armature 24, with its bell hammer thereon, is heavier and less easily vibrated than the buzzer armature 17.v In other words, the buzzer armature and bell-hammer armature are so constructed and arranged that less force or energy is required to operate the buzzer armature than is required to actuate the bell hammer armature.

lt is important that the disadvantages which result from a construction and mode of operation whereby the buzzer armature is actuated during` the operation of the bell hammer armature, as in the case of certain known devices, should be avoided. It is particularly desirable that the confusion of sounds for signals, and the needless waste of energy which results from actuating the buzzer armature during the operation of the the-buzzer armature operating at the same time with the bell, should be avoided, as it is in my improved device herein described and shown.

The circuits are as follows: It should be noted that the coils or windings 11 and 13 are not directly connected, but are separate, and are spaced apart, as shown.

The battery D, or source of electric supply, serves to supply all of the circuits, of which there are three. And there is a circuit closer in the form of a switch or push button in and for each circuit.

The insulated binding post 5 is connected with the battery D by means of wires 30 and 31 which are connected with a circuit closer in the form of a switch or push button A, for actuating the bell-hammer armature to cause the bell to be struck once for eachv operation ofthe switch. The insulated binding post 6 is connected with the opposite terminal of the battery by means of a battery wire 32.

The binding post 7, which is not insulated, but is in contact with the base plate 1, is connected with the battery by means of battery wires 33, 34, and 31, the wires 33 and 34 being connected with the circuit closer, switch or push button B, for actuat` ing the bell hammer armature 24 when a vibrating action ofthe bellv hammer, or a continuous series of strokes in quick succession is to be obtained by operating the circuit closer B once for such vibrating action or continuous series of successive strokes of the bell hammer.

The insulated binding post 8 is connected with the battery by means of battery wires 35 and 36, and wiresy 34 and 31, the wires 35 and 36 being connected with circuit closer, switch or push button C, for actuating the buzzer armature, which is accomplished without actuating the bell hammer armature.

The insulated binding post 5 is connected by wire 37 with the insulated post 27, and thence, by wire 38 to the coil or winding 11 of the upper electromagnet, and thenceby wire 39 to the insulated binding post 6, which is connected with the battery by wire 32, as already described. Therefore, when cause the bell'hammer to strike the bell a single stroke, and without actuating the buzzer armature. f When the circuit closer or push button By iisclosed,`the'circuit is closed from battery D through battery wire 32,'insulated post 6,y w'ire`39, "upper'coilv or winding 11,"wire 38,

insulated posty 27, spring contact or inter- ,i'upter 26,ji'armat'ure'l24, supporting Vvflange :'20, base plate 1, to non-insulated post 7 ,I

which is groundedfthence through battery wire 33,'c`ircu'it-closerB, wire 34 and wire 31, tothe batteryfthereb'y causing the core v10 of theupper electromagnettoghe/enerygized, so as toactuate the bell' hammerarmature 24 and interrupte'r 26, and produce a continuous series of strokes of'the bell, or what may be termed a vibratory action of the bell hammer, without energizing the core 12 oi' the lower electromagnet, and therefore, without actuating they buzzer armature 17 during the operation` ofthe bell hammer armature.

When the circuit closer or push button C is closed, the circuit is closed from battery D through wire 32, post 6, wirev 39, upper coil 11, wire 38, insulated post 27, spring Contact 26, bell hammer armature 24, armature-supporting flange 2O to the base plate 1, thence through grounded armature 17, or buzzer, interruptery or spring contact 18, post 21, and `wire 40, to the lower coil 13, thence through wire 41 .through the insulated binding post 8, Wire 35, circuit closer C, wire 36, wire 34 and wire 31, tothe loat-r tery D, thereby causing the cores of both the upper and `lower electromagnets to be energized, and, by causing the current to pass through the coils of both of said electromagnets,providing additional resistance to the current, so that, although there is sufficient energy provided to actuate the buzzer armature by energizing the core. 12 of the lower electromagnet-the buzzer ariature being lighter and more easily operated than the bell hammer armature-the bell hammer armature will not be actuated during the operation of the buzzer.

From the foregoing it isobvious that the buzzer armature will not be actuated during the operation of the bell hammer armature, for the reason that the circuit is through the coil of the upper electromagent, so as to energize the core of the upper magnet, but not through the coil of the lower magnet when the bell hammer armature is actuated either for a single stroke or ior'a continuous lseries of strokes in rapid succession.

It follows that the buzzer armature is not actuated during the `operatioii of the bell hammer armature so as to cause a confusion of noises or signals, which would be very undesirable and objectionable for many reasons, as will be readily understood and appreciated by those skilled in the art.

From the foregoing it is plain that a combined bell and buzzer are mounted on one base, and constructed to enable three distinctly diiierent signals to be` given separat'ely 'and' in any desired" order, each "byA the closing oic al ldistinct and separate switch,

each oisuch switches being adapted tobe -op'-` erated in the same manner;i'or"instance, byA the pressing of la singlepushbutton,`'all of the'push buttons or switches-having no only the v"same mode oi""operation, butthe simplest andffmo'st convenient Inode of operation, and not requiring the operation `oit' more than one switch for'lany givencircuit,`lor the 'operation offa' switch to different positions: "And the device, having these advantagesandcapalole'- of'accom'plishing these purposes in an efficient manner is soconstructed as to I elimrnatethe use oi-'unn'ecessary wiring and parts, f and valso eliminates the 'obj actionable feature' of havingtthe buzzer o'perate'whenl thev bell" liani'meris operated tof cause a l'series v of successivetstrOkes, as iClistinguishedfrom a single stroke of the bell, to be made. In order to provide a ydevice having all 'of the above mentioned advantages, and whichv is capable of accomplishing all of the above mentioned objects, all of-whichare not kaccomplished by any device known to the art,

I find it advantageous and desirable to provide means, preferably in the form,` herein described and shown, for connecting coils 11 and 13 in series when it isv desired to operate y the device as a buzzer, as any vdevice which would operate by merely closing a -circuit containing the coil 13, would interfere with the operation of one or both of the other two change the wiring of one or both `of the other two circuits, or add unnecessarily to the circuits, or else would render it necessary to i wiring and parts or change the mode `of n operation of the parts to the detriment of the device. j

It is very desirable to use the metallic base plate which supports the coils and electrically operated parts of the device, as an electrical conductor. which coacts with the hammer to produce ay series of successive strokes, and without rendering it necessary lto cause the buzzer to operate simultaneously with or during the ringing of the bell, and in order to accomplish this, as well as the other advantages and desirable .objects above mentioned, I iind it advantageous, and I believe it to be necessary, to provide means for connecting the coils 11 and 13 in series instead of merely closing a circuit containing the coil 13 only, or unnecessarily increasing the wiring, or complicating the connections between the battery and the coils, or between the battery and the electrical conductors of one or more of the three circuits.

I claim: V

In a signaling device, the combination of a metallic base, a bell, a bell hammer,.a bell hammer armature, a buzzer armature, a pair of separate electro-magnetic coils, a core encircled by cneof said coils only and havingv an end of said core adjacent to the bell hammer armature, and acting to actuate said armature without actuating the buzzer armature when the said coil and core are energized, a second core encircled by the other one of said separate coils and having an end of said last mentioned core adjacent to the buzzer armature, and acting to actuate the saine when said core is energized, three circuits each adapted to be connected with a source of electric supply, a circuit closer in each of said circuits, one of said circuits passing through one of said coils and acting to energize one of said cores only, namely the i'irst mentioned core, for actuating the bell hammer to produce a single stroke of the bell hammer, another of said circuits pass` meager a ing through said last mentioned coil and through an Ainterrupter connected with the bell hammer armature, and acting to energize said core only, for producing a continuous series oit successive strokes of the bell hammer armature Without actuating the buzzer armature, and a third circuit passing through both of said coils and through an interrupter on the buzzer armature and actingV to actuate the buzzer armature only, said buzzer armature and its interrupter being lighter and more easily operated than the bell hammer armature and its interrupter.

Signed at Chicago, Illinois, May 20, 1919.

` SAUL KATZ.

VVitnesseS:

HARRY I. CROMER, M.- HARDING. 

